Bought a faulty Pentax-DA 11-18?

Started 7 months ago | Questions thread
Carlos U Regular Member • Posts: 333
Re: Bought a faulty Pentax-DA 11-18?

Besides the changes in light levels, if you look carefully, the foreground is softer in the lighter pictures, or a bit sharper in the darker ones (look in to the granite block on the right and the grill on the left, specially between photos #4 and #5). I asume all pictures where focused at the same distance.

This could be a sign of a sticky aperture. According to EXIF all pictures where taken at f5.6. Looks like on the three that are brighter the aperture was wider.

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Sony RX100 III Pentax K10D Pentax K-5 Pentax K-3 II Pentax smc DA 18-55mm F3.5-5.6 AL +12 more
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